So why doesn't this happen when I boot the older kernel, and the performance of my system is back to normal, and there is no wait time (was near 100% before)? Andy <div class="gmail_quote">On Tue, Nov 4, 2008 at 10:39 AM, Alan Cox <<a href="mailto:alan@lxorguk.ukuu.org.uk">alan@lxorguk.ukuu.org.uk</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Media error is a flag raised directly by the drive. The kernel can't invent it. Your drive reported an error, with data ready, the error was uncorrectable. The smart data from the drive will provide further information on why the drive logged an error and the nature of the error. Alan </blockquote></div>